Paper elevator for printing and folding machines



Dec. 19, 1922. 1,439,535;

F. E. W E E D PAPER'ELEVATOR FOR PRINTING AND FOLDING MACHINES. FILED APR. 20. I92].

2 SHEETSSHEET l.

0 0 D O 0 O O J a T Jrmuuhw 0 o 5 O O Dec. 19, 1922. 1,439,535.

F. E. WEED. PAPER ELEVATOR FOR PRINTING AND FOLDING MACHINES.

FILED APR.20.192I. 2 SHEETS-SHEE1 2.

i4 17 a 16 J/ 3 3/ 4 z 53 i0 i9 37 F/ /1? WE fl 16 4 I l 4 3 /z gwmntoz {J 4/04 W provided to render the elevator inoperat ve.

1920, Serial which the paper is ie Patented Dec. 19, 1922.

"UNITED sures PATENT OFFICE.

FRED E. WEE-D. 0F CGLUMBIA, MISSOURI.

PAPER ELEVATOR FOB PRINTING AND FOLDING IVIACHINES.

Application filed April 20, 1921. Serial No. 462,983.

This invention relates to innpi'oveinents in' a paper elevator for printing and folding achines.

The main object of the invention is to provide a paper elevator that is automatic n operation dependin upon the speed at d to the printing or fo machine and wherein nieansare when the feeding operation is discontirnied notwithstanding the fact that the printing or folding machine may continue in operation.

Another object of the invention is to provide a vertically movable platform to receive the paper that is fed to the printing or toldv ing machine and means to normally rest on the top of the bulk "of paper to control the i movement of the platform thus insuring elevation of the platform only after a predetermined quantity of: the papers has been fed to the printing or folding machine.

A further object of the invention is to provide an elevator of the character do scribed that is applicable to conventionat tylpes of printing and lolding machines and Wii ch may also he used to advantage in connection with the feeding mechan sm for printing and folding machines covered in my co-pendi T application filed iunber 447,668.

A. still further object of my invention is to provide on automatic elevator oi the above character that is simple in construction, strong and durable and which may be produced at a low cost.

Various othe objects and advantages of n1 v invention will become apparent during the continuan e of the fOll'JWllflg description.

In the drawings1- Figure l is a view in side elevation SllOW- ing my invention in its preferred embodi- Inent.

Figure 2 is a view in top plan.

Figure 3 is a view in vertical longitudinal cross section taken on line 3*3 of Figure 2. i

Figure 4 is :1 view in transverse cross sect on taken on llne 4:--l of Figure 2.

In the drawings, 10 designates the stand or body portion of the elevator which may be constructed oi any suitable or desirable material and designed in any novel or peculiar nianner. On opposite sides. the hod-y portion or stand LO carries suitably formed guide and su l lmrting members 11 and 12 re spectively which hano supporting; heads located at the bottom thereof as clearly shown in Figures 3 and 4/ The guide men}- hers 11 and 12 are further provided vertically extending channfilfi 14 and 15 th purposeof which will presently appear.

On opposite sides of the top,, the base pr stand 10 carries upstanding bearingniernhers 1G and 1? which support a t ran svense operatint: shaft 18. Longi din al n oveinent shaft l8lwith respect [to the hearing members l6 and {IT is p ferented hy means of collars 19, 20, 21 andQQ Wh QhnWifi N the shaftiand positioned on each side of the hearing portions as shown toadvantage m Figure 2. The shaft 18 also carries o p'ositely arranged hevellrid gears van 24 which are fixed t ereto zand arr nged in spaced relation to each of the tions 16 and IT and serve the purpose that will presentlyappear. x

orin shafts 25 andlZG h in lower ends journalled in the lien 15 i? so fhamonlhers i1 and 12 i-while t i inqper end is nailed in en ipleuieii av bear ng lportionsi 7 2 4N128 \vhic are carried ontlie hearing po tions it; and 1.7 and secured in place y means of fasteningmembers a, 30; a t

their iper end the wprnlvSb l ffi 1mg hare-provided with bevelled fiears iii ;an October 8th,

which me$hnfith the .penel led gears 23 24 that, are carried on the shaft 18 fi lonsequently when the shaft 18 isrotate d, e si' lar movement will on transmitted to the worm shaf sa and .6- i v v A. plat..orin is also provided and carries extensions 34 ad which project into the channels 14 and 15 respectively of the members i and 1.2 and which have screw. threaded openings to receive th Worm shafts Q3 audQG as clearly shown in *igure 4. A platform which receives the paperto be fed to the printing or foldin n machines in connection \Ylgtl] which the elevator is used and which in the present embodiment have designated by the numeral 36 so that when the shafts 35 and 36 are rotated in the proper dire tion, the plat-form 33 will he movcd'upx-var ,yso as to feed the paper which is eartil 2 lied thereon to the other mechanism of the machine, as is obvious.

On one of its projecting ends and in spaced relation to the col ar 22,-the shaft 18 carries a. ratchet wheel 36 which is keyed thereto so as to operate with the shaft. Adjaccnt the ratchet wheel the shaft also carries a loosely mounteddisc wheel 37 which has a cam extension 38 mounted adjacent the periphery thereof for the purpose that will presently appear.

In order to rotate the shaft 18, I provide the same with a depending arm 39 which is loose on the shaft so that it may he rocked and which carries a pawl 40 that normally engages the ratchet wheel 36 as clearly 4 shown in Figure 1. Consequently by rocking the arm 39, the pawl a0 will, acting on the teeth of the ratchet wheel, cause the wheel to be rotated and impart a light movement to the shaft 18. An actuating arm 41 is adjustahly connected to the arm 39 as at 42 in order to operate the arm 39. The connection between the arm -11 and the arm 39 is adjustable so that the throw of the arm 39 may be regulated and thereby ad-' just the throw of the pawl 40 with respect to the ratchet wheel 36. The arm 41 is attached to suitable mechanism on the printing or folding machine which will cause the arm 41 to reciprocate continually during the operation of the machine.

It will be observed upon reference to Figure 4 that the cam extension 38 of the disc wheel 37 is in line with the pawl of the arm 39 so that when the disc wheel 3} is given a partial rotation, the cam can be brought into engagement with the pawl 40 so as to force the same out of engage 401 ment with the ratchet wheel 36. When the disc wheel is in such position and the ,ratchet wheel 36, it will be noted that the movement of the arm 39 will not cause a ro- 5; tation of the ratchet wheel 36 and the shaft 38. However whgn the disc wheel 37 has been moved to its normal position and the the shaft 19 will continue.

I also provide means to operate the disc wheel 3T so as to control the engagement of the pawl 40 with the ratchet heel 36 as the feeding operation of the paper on the platform 33 continues. With this in view, I provide the stand or body p rtion 1" with a transverse shaft 13 which is l0- cated on the top thereof and near the front as shown in Figure 2. The shaft is carried in hearings 44 and 45 and one end projeets beyond the base or stand 10 preferably on the side opposite the ratchet wheel 36 and the disc wheel 37. Intermediate its ends and between the bearing portions 34 and 35, the shaft 33 carries a depending arm 46 which is in turn provided at its lower end pawl 40 is out of engagement with thcl pawl 4:0 has been released, the rotation of with a roller 47. The roller 47 normally rests n the uppermost sheet of the bulk of paper ll) which is carried on the platform 33 and it will he readily observed that when the paper is fed to the printing or 'fohling machine, the roller and the arm will gradually more downwardly. tln its projecting end. the shaft 323 also carries a depending arm 48 which fixedly carried thereby and which is pivotally connected to a connecting arm 49. The opposite end of the connecting arm 49 is pivotally connected to the disc wheel 37 as at 50 ata point adjacent its periphery as shown in l igures l and 4. From this construction ,it will he observed that as the paper is fed from the bulk 36 and the arm and roller 46 and 47 move downwardly, the disc wheel 37 will be moved by the arm 48 and the connecting arm 49 so as to position the cam 38 away from the pawl 40. owever, as the platform 33 moves upwardly and the arm 46 and the roller 47 are moved in a similar direction, the cam 38 will be brought near the pawl 40 until finally it engages the pawl and moves it out of engagement with the ratchet wheel 36 so as to cause a discontinuance of the operation of the shaft 18 and the elevation of the platform 33. In other words as the, arm 46 and the roller 47 raise and lower, the operation of the shaft 18 will be controlled automatically as will the elevation of the platform In order to prevent retrograde movement of the ratchet wheel 36 when the pawl 40 is out of engagement therewith, I provide the iuljaeent bearing portionll'r with a pawl 51. which remains in engagement with the ratchet wheel at all times. However, inas much as the pawl 51 is stationary and does not move with the pawl 40, it will be observed that the only function performed thereby is to prevent reverse movement of the ratchet wheel 36.

()n the opposite end of the shaft 18, I may arrange a handle 52 whereby the elevator may be operated, manually, for instance, to return the platform 33 to its normal and lowermost position. The handle may he of an desired form.

From the foregoing it is believe that the advantages nd novel feature of my inven tion will be readily understood and therefore further detailed description is dee ined unnecessary.

hat is laimed is:-

in a dmicc of the haracter described. a supporting structure, vertically disposed worm shafts carried by said supporting structure, a platform having openings to receive said worm shafts, bevelled gears carried at the upper end of said worm shaft,

a shaft mounted transversely across said body portion and superimposed above said platform, bevelled gears carried on said shaft meshing with said first named bevelled gears; a ratchet wheel lixed to said serond named dia'l't. an arm loosely mounted on said second named shalt, a pawl rarried. by said arm normally engaging said ratchet wheeh means whereby said arm may he rorked whereby said second named sha'lt will be rotated so as to cause rotation of said worm shaft and the consequent operation of said platfm-m, a disc member loosely mounted on said second named shaft, means on said disc member engageahle With said pawl at certain times to move the latter out of engagement with said ratchet Wheel, a second shaft superimposed above said platform and arranged transversely across said land portiom m :ans loosely ronuerting said last named shalt and said disr memher whereby upon partial rotation of said last named shaft. the dise member will he moved so as to throw said pawl out of engagement with said ratchet wheel and means carried by said last named shaft engageahhwith the material carried on said platform. sill) stantially desrrihed.

In testimony whereof l affix my signature in presence of two witnesses.

FRED E. WEED.

W'itnesses M. G. T11 u'as'roN CALLA L. GREENE. 

